Updated earmark functionality & fix vim keybindings bug as requested by @wallk
Resolved ssue created Oct 5, 2023, 7:51 PM by WallK : Layout now does not break if escape characters are input as earmarks
Improve earmark functionality. Each earmark digit is colored individually.
New feature: Toggle info (key cheatsheet).
Added feature: earmarked cells change color when illegal (thenumber already exists in row, column or 3x3 square)
Every level now shows its own top ten list.